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N08367 Stainless Steel vs. AISI 321H Stainless Steel

Both N08367 stainless steel and AISI 321H stainless steel are iron alloys. Both are furnished in the annealed condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is N08367 stainless steel and the bottom bar is AISI 321H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
40
Fatigue Strength, MPa 280
200
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
51
Rockwell B Hardness 88
82
Shear Modulus, GPa 80
77
Shear Strength, MPa 490
400
Tensile Strength: Ultimate (UTS), MPa 740
580
Tensile Strength: Yield (Proof), MPa 350
230

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
480
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 33
16
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
3.2
Embodied Energy, MJ/kg 84
46
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 46
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 290
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 20 to 22
17 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 41.4 to 50.3
65.4 to 74
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
9.0 to 12
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.7